TEXAS Manuals

This is an advanced battery monitoring IC that accurately measures the charge and discharge currents in rechargeable battery packs. Intended for pack integration, the bq2023 contains all the necessary functions to form the basis for an accurate battery gas gauge in cellular phones, PDAs or other portable products.

The bq2022 is a 1K-bit serial EPROM containing a factory programmed unique 48-bit ID number, 8-bit CRC generation and the 8-bit family code (09h). A 64-bit status register controls write protection and page redirection. The bq2022 SDQ interface (TI’s proprietary serial communications protocol) requires only a single connection and a ground return. The DATA pin is also the sole power source for the bq2022. The bus architecture allows multiple SDQ devices to be connected to a single host. The small surface-mount package options saves printed-circuit-board space, while the low cost makes it ideal for applications such as battery pack configuration parameters, record maintenance, asset tracking, product-revision status and access-code security.

bq2019 is a battery monitoring IC released by Texas Instruments. It is mainly used in portable applications such as mobile phones, PDAs or other portable products. The chip can measure the charge and discharge currents of the battery and provides 64 bytes of general-purpose flash storage space for storing battery data.

The bq2018 Power Minder is a complete evaluation system for the bq2018 Power Minder IC. It works with any battery pack chemistry and capacity and directly connects to the battery pack. It includes PC software and an interface board for easy evaluation.

The bq2018 is a low-cost charge/discharge counter that works with an intelligent host controller to provide charge and discharge information for rechargeable batteries. It has various features, including internal offset calibration for improved accuracy, NVRAM registers for capacity monitoring, and a single-wire serial interface. It can operate in different modes and has an internal timebase, making it suitable for battery pack integration.

bq2003 is a nickel cadmium or nickel-metal hydride battery fast charge and conditioning circuit, which supports switch-mode current regulation or external regulator gate control, and can be easily integrated into the system or used alone.

bq2002E/G is a low-cost CMOS battery charge controller that provides reliable charge termination for both NiCd and NiMH battery applications.

This document describes the features and characteristics of the bq2002E and bq2002G Fast-Charge ICs, including fast charging of nickel cadmium or nickel-metal hydride batteries, direct LED output for displaying charge status, various methods for fast charge termination, optional top-off charge, selectable pulse trickle charge rates, and low-power mode.

bq2002d/t is a low-cost cmos battery charger controller that can provide reliable charge termination for both nicd and nimh battery applications

bq2002d/t is a low-cost cmos battery charge controller capable of providing reliable charge termination for both nickel cadmium and nickel-metal hydride battery applications.

This file introduces the features of bq2002C Fast-Charge IC, including fast charging, direct LED output display charging status, fast charging termination, internal band-gap voltage reference, selectable pulsed trickle charge rates, low power mode, etc.

The document describes the features and characteristics of the bq2002 and bq2002/F fast charge ICs, including fast charging of nickel cadmium or nickel-metal hydride batteries, direct LED output displaying charge status, fast charge termination by -∆V, maximum voltage, maximum temperature, and maximum time, etc.

This document introduces a programmable, monolithic IC for fast charge management of nickel cadmium (NiCd), nickel metal-hydride (NiMH), or lithium-ion (Li-Ion) batteries. The product has several features, including safe management of fast charge, high-frequency switching controller, pre-charge qualification, fast charge termination criteria, selectable top-off mode, programmable trickle-charge mode, built-in battery removal and insertion detection, and sleep mode for low power consumption.

bq2000 is a programmable, monolithic IC for fast-charge management of nickel cadmium (NiCd), nickel metal-hydride (NiMH), or lithium-ion (Li-Ion) batteries in single- or multi-chemistry applications. The bq2000 detects the battery chemistry and proceeds with the optimal charging and termination algorithms. This process eliminates undesirable under-charged or overcharged conditions and allows accurate and safe termination of fast charge. Depending on the chemistry, the bq2000 provides a number of charge termination criteria: � Peak voltage, PVD (for NiCd and NiMH) � Minimum charging current (f or Li-Ion) � Maximum temperature � Maximum charge time For safety, the bq2000 inhibits fast charge until the battery voltage and temperature are within user-defined limits. If the battery voltage is below the low-voltage threshold, the bq2000 will enter sleep mode until the battery voltage and temperature rise to a safe level.